So why is it that I and many other biologists hypothesize that introns are mostly non-functional? (I'll assume that you've read the previous posts, and that you understand what it is that I mean when I challenge claims that introns are functional elements in an information-rich genome.

What does it mean to claim that an intron has a function? The question is obviously important, at least as long as there are disputes about whether introns have "functions" and whether science ignored them for decades. Now, I can't help the ID people with their propensity for repeating falsehoods about the history of "junk DNA" and the role of "Darwinism" in its characterization.

Before we explore what introns are and how they work, let me correct the misuse of my words by one of the ID attack kittens. Months ago, referring to Steve Meyer's claim that introns "are now known to play many important functional roles in the cell," I sought to put intron "function" into context as follows:One critic has interpreted me as claiming that I know that 189,000 introns have no function.

It's time to talk about introns and function, so at least the ID people and I can agree on what we're disagreeing about. First, though, a little housecleaning. When confronting the avalanche of misinformation on so-called "junk DNA" from intelligent design creationists, it can be hard to know where to start.

U2 can't make it to Michigan this year, due to Bono's back injury. (Me: "Ouch. He'll be fine." My girlfriend Susan: "What do you expect? He's old. He should pack it in.") So here are my attempts to fill the void. Continue reading...

...oh, Boston you're my home. Well, it was for five years, if Woburn counts as "Boston." And the lab was at least half my life, so sure, Boston was my home. But anyway, Wednesday through Saturday I'll be at Gordon College, on the North Shore, about 40 minutes from where we used to live, at this Biologos conference. And the point of all this?

Dear Steve: It was good to meet you last month at Biola.

No one should take advice from this character, I'll grant you.

Here I'm continuing my discussion of the Signature in the Cell book-signing event at Biola University on 14 May. You'll want to read Parts I and II before reading on. My second question to Steve Meyer was the one question I most wanted to ask him, both out of personal curiosity and because I thought the answer would help demystify many of his claims. The exchange that resulted was memorable – on that, everyone seems to agree.

Here are some further observations on the Stephen Meyer book-signing appearance. Part I dealt with Meyer's talk and the other festivities. Here I'll describe the last third of the event, in which Art Hunt and I (the "powerful group of credentialed critics") spent a short time questioning Meyer. Continue reading...